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-rw-r--r--roms/u-boot/test/dm/bus.c487
1 files changed, 487 insertions, 0 deletions
diff --git a/roms/u-boot/test/dm/bus.c b/roms/u-boot/test/dm/bus.c
new file mode 100644
index 000000000..89a6aa655
--- /dev/null
+++ b/roms/u-boot/test/dm/bus.c
@@ -0,0 +1,487 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2014 Google, Inc
+ */
+
+#include <common.h>
+#ifdef CONFIG_SANDBOX
+#include <log.h>
+#include <os.h>
+#endif
+#include <dm.h>
+#include <asm/global_data.h>
+#include <dm/device.h>
+#include <dm/device-internal.h>
+#include <dm/test.h>
+#include <dm/uclass-internal.h>
+#include <dm/util.h>
+#include <test/test.h>
+#include <test/ut.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* Test that we can probe for children */
+static int dm_test_bus_children(struct unit_test_state *uts)
+{
+ int num_devices = 9;
+ struct udevice *bus;
+ struct uclass *uc;
+
+ ut_assertok(uclass_get(UCLASS_TEST_FDT, &uc));
+ ut_asserteq(num_devices, list_count_items(&uc->dev_head));
+
+ /* Probe the bus, which should yield 3 more devices */
+ ut_assertok(uclass_get_device(UCLASS_TEST_BUS, 0, &bus));
+ num_devices += 3;
+
+ ut_assertok(uclass_get(UCLASS_TEST_FDT, &uc));
+ ut_asserteq(num_devices, list_count_items(&uc->dev_head));
+
+ ut_assert(!dm_check_devices(uts, num_devices));
+
+ return 0;
+}
+DM_TEST(dm_test_bus_children, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
+
+/* Test our functions for accessing children */
+static int dm_test_bus_children_funcs(struct unit_test_state *uts)
+{
+ const void *blob = gd->fdt_blob;
+ struct udevice *bus, *dev;
+ int node;
+
+ ut_assertok(uclass_get_device(UCLASS_TEST_BUS, 0, &bus));
+
+ /* device_get_child() */
+ ut_assertok(device_get_child(bus, 0, &dev));
+ ut_asserteq(-ENODEV, device_get_child(bus, 4, &dev));
+ ut_assertok(device_get_child_by_seq(bus, 5, &dev));
+ ut_assert(dev_get_flags(dev) & DM_FLAG_ACTIVATED);
+ ut_asserteq_str("c-test@5", dev->name);
+
+ /* Device with sequence number 0 should be accessible */
+ ut_asserteq(-ENODEV, device_find_child_by_seq(bus, -1, &dev));
+ ut_assertok(device_find_child_by_seq(bus, 0, &dev));
+ ut_assert(!(dev_get_flags(dev) & DM_FLAG_ACTIVATED));
+ ut_asserteq(0, device_find_child_by_seq(bus, 0, &dev));
+ ut_assertok(device_get_child_by_seq(bus, 0, &dev));
+ ut_assert(dev_get_flags(dev) & DM_FLAG_ACTIVATED);
+ ut_asserteq(0, device_find_child_by_seq(bus, 0, &dev));
+
+ /* There is no device with sequence number 2 */
+ ut_asserteq(-ENODEV, device_find_child_by_seq(bus, 2, &dev));
+ ut_asserteq(-ENODEV, device_find_child_by_seq(bus, 2, &dev));
+ ut_asserteq(-ENODEV, device_get_child_by_seq(bus, 2, &dev));
+
+ /* Looking for something that is not a child */
+ node = fdt_path_offset(blob, "/junk");
+ ut_asserteq(-ENODEV, device_find_child_by_of_offset(bus, node, &dev));
+ node = fdt_path_offset(blob, "/d-test");
+ ut_asserteq(-ENODEV, device_find_child_by_of_offset(bus, node, &dev));
+
+ return 0;
+}
+DM_TEST(dm_test_bus_children_funcs, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
+
+static int dm_test_bus_children_of_offset(struct unit_test_state *uts)
+{
+ const void *blob = gd->fdt_blob;
+ struct udevice *bus, *dev;
+ int node;
+
+ ut_assertok(uclass_get_device(UCLASS_TEST_BUS, 0, &bus));
+ ut_assertnonnull(bus);
+
+ /* Find a valid child */
+ node = fdt_path_offset(blob, "/some-bus/c-test@1");
+ ut_assert(node > 0);
+ ut_assertok(device_find_child_by_of_offset(bus, node, &dev));
+ ut_assertnonnull(dev);
+ ut_assert(!(dev_get_flags(dev) & DM_FLAG_ACTIVATED));
+ ut_assertok(device_get_child_by_of_offset(bus, node, &dev));
+ ut_assertnonnull(dev);
+ ut_assert(dev_get_flags(dev) & DM_FLAG_ACTIVATED);
+
+ return 0;
+}
+DM_TEST(dm_test_bus_children_of_offset,
+ UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT | UT_TESTF_FLAT_TREE);
+
+/* Test that we can iterate through children */
+static int dm_test_bus_children_iterators(struct unit_test_state *uts)
+{
+ struct udevice *bus, *dev, *child;
+
+ /* Walk through the children one by one */
+ ut_assertok(uclass_get_device(UCLASS_TEST_BUS, 0, &bus));
+ ut_assertok(device_find_first_child(bus, &dev));
+ ut_asserteq_str("c-test@5", dev->name);
+ ut_assertok(device_find_next_child(&dev));
+ ut_asserteq_str("c-test@0", dev->name);
+ ut_assertok(device_find_next_child(&dev));
+ ut_asserteq_str("c-test@1", dev->name);
+ ut_assertok(device_find_next_child(&dev));
+ ut_asserteq_ptr(dev, NULL);
+
+ /* Move to the next child without using device_find_first_child() */
+ ut_assertok(device_find_child_by_seq(bus, 5, &dev));
+ ut_asserteq_str("c-test@5", dev->name);
+ ut_assertok(device_find_next_child(&dev));
+ ut_asserteq_str("c-test@0", dev->name);
+
+ /* Try a device with no children */
+ ut_assertok(device_find_first_child(dev, &child));
+ ut_asserteq_ptr(child, NULL);
+
+ return 0;
+}
+DM_TEST(dm_test_bus_children_iterators,
+ UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
+
+/* Test that the bus can store data about each child */
+static int test_bus_parent_data(struct unit_test_state *uts)
+{
+ struct dm_test_parent_data *parent_data;
+ struct udevice *bus, *dev;
+ struct uclass *uc;
+ int value;
+
+ ut_assertok(uclass_get_device(UCLASS_TEST_BUS, 0, &bus));
+
+ /* Check that parent data is allocated */
+ ut_assertok(device_find_child_by_seq(bus, 0, &dev));
+ ut_asserteq_ptr(NULL, dev_get_parent_priv(dev));
+ ut_assertok(device_get_child_by_seq(bus, 0, &dev));
+ parent_data = dev_get_parent_priv(dev);
+ ut_assert(NULL != parent_data);
+
+ /* Check that it starts at 0 and goes away when device is removed */
+ parent_data->sum += 5;
+ ut_asserteq(5, parent_data->sum);
+ device_remove(dev, DM_REMOVE_NORMAL);
+ ut_asserteq_ptr(NULL, dev_get_parent_priv(dev));
+
+ /* Check that we can do this twice */
+ ut_assertok(device_get_child_by_seq(bus, 0, &dev));
+ parent_data = dev_get_parent_priv(dev);
+ ut_assert(NULL != parent_data);
+ parent_data->sum += 5;
+ ut_asserteq(5, parent_data->sum);
+
+ /* Add parent data to all children */
+ ut_assertok(uclass_get(UCLASS_TEST_FDT, &uc));
+ value = 5;
+ uclass_foreach_dev(dev, uc) {
+ /* Ignore these if they are not on this bus */
+ if (dev->parent != bus) {
+ ut_asserteq_ptr(NULL, dev_get_parent_priv(dev));
+ continue;
+ }
+ ut_assertok(device_probe(dev));
+ parent_data = dev_get_parent_priv(dev);
+
+ parent_data->sum = value;
+ value += 5;
+ }
+
+ /* Check it is still there */
+ value = 5;
+ uclass_foreach_dev(dev, uc) {
+ /* Ignore these if they are not on this bus */
+ if (dev->parent != bus)
+ continue;
+ parent_data = dev_get_parent_priv(dev);
+
+ ut_asserteq(value, parent_data->sum);
+ value += 5;
+ }
+
+ return 0;
+}
+/* Test that the bus can store data about each child */
+static int dm_test_bus_parent_data(struct unit_test_state *uts)
+{
+ return test_bus_parent_data(uts);
+}
+DM_TEST(dm_test_bus_parent_data, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
+
+/* As above but the size is controlled by the uclass */
+static int dm_test_bus_parent_data_uclass(struct unit_test_state *uts)
+{
+ struct driver *drv;
+ struct udevice *bus;
+ int size;
+ int ret;
+
+ /* Set the driver size to 0 so that the uclass size is used */
+ ut_assertok(uclass_find_device(UCLASS_TEST_BUS, 0, &bus));
+ drv = (struct driver *)bus->driver;
+ size = drv->per_child_auto;
+
+#ifdef CONFIG_SANDBOX
+ os_mprotect_allow(bus->uclass->uc_drv, sizeof(*bus->uclass->uc_drv));
+ os_mprotect_allow(drv, sizeof(*drv));
+#endif
+ bus->uclass->uc_drv->per_child_auto = size;
+ drv->per_child_auto = 0;
+ ret = test_bus_parent_data(uts);
+ if (ret)
+ return ret;
+ bus->uclass->uc_drv->per_child_auto = 0;
+ drv->per_child_auto = size;
+
+ return 0;
+}
+DM_TEST(dm_test_bus_parent_data_uclass,
+ UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
+
+/* Test that the bus ops are called when a child is probed/removed */
+static int dm_test_bus_parent_ops(struct unit_test_state *uts)
+{
+ struct dm_test_parent_data *parent_data;
+ struct udevice *bus, *dev;
+ struct uclass *uc;
+
+ testbus_get_clear_removed();
+ ut_assertok(uclass_get_device(UCLASS_TEST_BUS, 0, &bus));
+ ut_assertok(uclass_get(UCLASS_TEST_FDT, &uc));
+
+ uclass_foreach_dev(dev, uc) {
+ /* Ignore these if they are not on this bus */
+ if (dev->parent != bus)
+ continue;
+ ut_asserteq_ptr(NULL, dev_get_parent_priv(dev));
+
+ ut_assertok(device_probe(dev));
+ parent_data = dev_get_parent_priv(dev);
+ ut_asserteq(TEST_FLAG_CHILD_PROBED, parent_data->flag);
+ }
+
+ uclass_foreach_dev(dev, uc) {
+ /* Ignore these if they are not on this bus */
+ if (dev->parent != bus)
+ continue;
+ parent_data = dev_get_parent_priv(dev);
+ ut_asserteq(TEST_FLAG_CHILD_PROBED, parent_data->flag);
+ ut_assertok(device_remove(dev, DM_REMOVE_NORMAL));
+ ut_asserteq_ptr(NULL, dev_get_parent_priv(dev));
+ ut_asserteq_ptr(testbus_get_clear_removed(), dev);
+ }
+
+ return 0;
+}
+DM_TEST(dm_test_bus_parent_ops, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
+
+static int test_bus_parent_plat(struct unit_test_state *uts)
+{
+ struct dm_test_parent_plat *plat;
+ struct udevice *bus, *dev;
+
+ /* Check that the bus has no children */
+ ut_assertok(uclass_find_device(UCLASS_TEST_BUS, 0, &bus));
+ device_find_first_child(bus, &dev);
+ ut_asserteq_ptr(NULL, dev);
+
+ ut_assertok(uclass_get_device(UCLASS_TEST_BUS, 0, &bus));
+
+ for (device_find_first_child(bus, &dev);
+ dev;
+ device_find_next_child(&dev)) {
+ /* Check that platform data is allocated */
+ plat = dev_get_parent_plat(dev);
+ ut_assert(plat != NULL);
+
+ /*
+ * Check that it is not affected by the device being
+ * probed/removed
+ */
+ plat->count++;
+ ut_asserteq(1, plat->count);
+ device_probe(dev);
+ device_remove(dev, DM_REMOVE_NORMAL);
+
+ ut_asserteq_ptr(plat, dev_get_parent_plat(dev));
+ ut_asserteq(1, plat->count);
+ ut_assertok(device_probe(dev));
+ }
+ ut_asserteq(3, device_get_child_count(bus));
+
+ /* Removing the bus should also have no effect (it is still bound) */
+ device_remove(bus, DM_REMOVE_NORMAL);
+ for (device_find_first_child(bus, &dev);
+ dev;
+ device_find_next_child(&dev)) {
+ /* Check that platform data is allocated */
+ plat = dev_get_parent_plat(dev);
+ ut_assert(plat != NULL);
+ ut_asserteq(1, plat->count);
+ }
+ ut_asserteq(3, device_get_child_count(bus));
+
+ /* Unbind all the children */
+ do {
+ device_find_first_child(bus, &dev);
+ if (dev)
+ device_unbind(dev);
+ } while (dev);
+
+ /* Now the child plat should be removed and re-added */
+ device_probe(bus);
+ for (device_find_first_child(bus, &dev);
+ dev;
+ device_find_next_child(&dev)) {
+ /* Check that platform data is allocated */
+ plat = dev_get_parent_plat(dev);
+ ut_assert(plat != NULL);
+ ut_asserteq(0, plat->count);
+ }
+ ut_asserteq(3, device_get_child_count(bus));
+
+ return 0;
+}
+
+/* Test that the bus can store platform data about each child */
+static int dm_test_bus_parent_plat(struct unit_test_state *uts)
+{
+ return test_bus_parent_plat(uts);
+}
+DM_TEST(dm_test_bus_parent_plat, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
+
+/* As above but the size is controlled by the uclass */
+static int dm_test_bus_parent_plat_uclass(struct unit_test_state *uts)
+{
+ struct udevice *bus;
+ struct driver *drv;
+ int size;
+ int ret;
+
+ /* Set the driver size to 0 so that the uclass size is used */
+ ut_assertok(uclass_find_device(UCLASS_TEST_BUS, 0, &bus));
+ drv = (struct driver *)bus->driver;
+ size = drv->per_child_plat_auto;
+#ifdef CONFIG_SANDBOX
+ os_mprotect_allow(bus->uclass->uc_drv, sizeof(*bus->uclass->uc_drv));
+ os_mprotect_allow(drv, sizeof(*drv));
+#endif
+ bus->uclass->uc_drv->per_child_plat_auto = size;
+ drv->per_child_plat_auto = 0;
+ ret = test_bus_parent_plat(uts);
+ if (ret)
+ return ret;
+ bus->uclass->uc_drv->per_child_plat_auto = 0;
+ drv->per_child_plat_auto = size;
+
+ return 0;
+}
+DM_TEST(dm_test_bus_parent_plat_uclass,
+ UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
+
+/* Test that the child post_bind method is called */
+static int dm_test_bus_child_post_bind(struct unit_test_state *uts)
+{
+ struct dm_test_parent_plat *plat;
+ struct udevice *bus, *dev;
+
+ ut_assertok(uclass_get_device(UCLASS_TEST_BUS, 0, &bus));
+ for (device_find_first_child(bus, &dev);
+ dev;
+ device_find_next_child(&dev)) {
+ /* Check that platform data is allocated */
+ plat = dev_get_parent_plat(dev);
+ ut_assert(plat != NULL);
+ ut_asserteq(1, plat->bind_flag);
+ }
+ ut_asserteq(3, device_get_child_count(bus));
+
+ return 0;
+}
+DM_TEST(dm_test_bus_child_post_bind, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
+
+/* Test that the child post_bind method is called */
+static int dm_test_bus_child_post_bind_uclass(struct unit_test_state *uts)
+{
+ struct dm_test_parent_plat *plat;
+ struct udevice *bus, *dev;
+
+ ut_assertok(uclass_get_device(UCLASS_TEST_BUS, 0, &bus));
+ for (device_find_first_child(bus, &dev);
+ dev;
+ device_find_next_child(&dev)) {
+ /* Check that platform data is allocated */
+ plat = dev_get_parent_plat(dev);
+ ut_assert(plat != NULL);
+ ut_asserteq(2, plat->uclass_bind_flag);
+ }
+ ut_asserteq(3, device_get_child_count(bus));
+
+ return 0;
+}
+DM_TEST(dm_test_bus_child_post_bind_uclass,
+ UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
+
+/*
+ * Test that the bus' uclass' child_pre_probe() is called before the
+ * device's probe() method
+ */
+static int dm_test_bus_child_pre_probe_uclass(struct unit_test_state *uts)
+{
+ struct udevice *bus, *dev;
+
+ /*
+ * See testfdt_drv_probe() which effectively checks that the uclass
+ * flag is set before that method is called
+ */
+ ut_assertok(uclass_get_device(UCLASS_TEST_BUS, 0, &bus));
+ for (device_find_first_child(bus, &dev);
+ dev;
+ device_find_next_child(&dev)) {
+ struct dm_test_priv *priv = dev_get_priv(dev);
+
+ /* Check that things happened in the right order */
+ ut_asserteq_ptr(NULL, priv);
+ ut_assertok(device_probe(dev));
+
+ priv = dev_get_priv(dev);
+ ut_assert(priv != NULL);
+ ut_asserteq(1, priv->uclass_flag);
+ ut_asserteq(1, priv->uclass_total);
+ }
+ ut_asserteq(3, device_get_child_count(bus));
+
+ return 0;
+}
+DM_TEST(dm_test_bus_child_pre_probe_uclass,
+ UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
+
+/*
+ * Test that the bus' uclass' child_post_probe() is called after the
+ * device's probe() method
+ */
+static int dm_test_bus_child_post_probe_uclass(struct unit_test_state *uts)
+{
+ struct udevice *bus, *dev;
+
+ /*
+ * See testfdt_drv_probe() which effectively initializes that
+ * the uclass postp flag is set to a value
+ */
+ ut_assertok(uclass_get_device(UCLASS_TEST_BUS, 0, &bus));
+ for (device_find_first_child(bus, &dev);
+ dev;
+ device_find_next_child(&dev)) {
+ struct dm_test_priv *priv = dev_get_priv(dev);
+
+ /* Check that things happened in the right order */
+ ut_asserteq_ptr(NULL, priv);
+ ut_assertok(device_probe(dev));
+
+ priv = dev_get_priv(dev);
+ ut_assert(priv != NULL);
+ ut_asserteq(0, priv->uclass_postp);
+ }
+ ut_asserteq(3, device_get_child_count(bus));
+
+ return 0;
+}
+DM_TEST(dm_test_bus_child_post_probe_uclass,
+ UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);